Fig. 4.

Adjusted accuracy of external quality assessment results by parasite concentrationa. *Denotes difference with a p-value below 0.05. DBS: Dried Blood Spots. LB: lyophilized blood. aResults adjusted for laboratory capacity. bAll samples of P. malariae and P. ovale were > 2 parasites/µL. Three P. ovale sample was pooled and therefore concentration was unknown and not included in the analysis